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1. Chemotaxonomical characterisation of males of Bombus lucorum (Hymenoptera: Apidae) collected in the Czech Republic

Creator:
Urbanová, Klára, Valterová, Irena, Hovorka, Oldřich , and Kindl, Jiří
Type:
article, model:article, and TEXT
Subject:
Hymenoptera, Apidae, Bombus lucorum, bumblebees, marking pheromone, labial gland secretion, chemosystematics, and ethyl (Z)-9-tetradecenoate
Language:
English
Description:
Labial gland secretions of 26 males of the bumblebee Bombus lucorum (L.), collected in the Czech Republic, were analysed. The secretions consisted of 60 compounds; ethyl (Z)-9-tetradecenoate was the main component (average 53%). Although the males varied in colour, their labial gland secretions were similar in composition, which indicated they belonged to one species. Chemically the B. lucorum occurring in the Czech Republic correspond to the earlier described "blonde form" of this species.
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public

2. Fine structure of the external sheaths of the ovipositor of Aphidius ervi (Hymenoptera: Braconidae)

Creator:
Ruschioni, Sara, Riolo, Paola, Romani, Roberto, Battaglia, Donatella, and Isidoro, Nunzio
Format:
print, počítač, and online zdroj
Type:
model:article and TEXT
Subject:
blanokřídlí, lumčíkovití, Hymenoptera, Braconidae, Aphidius ervi, ultrastructure, ovipositor valve, parasitoid, gland, marking pheromone, 2, and 59
Language:
English
Description:
The function and structure of the ovipositor in Hymenoptera have been studied intensively, although there is a lack of information on the external sheaths. We provide here a contribution on the structure of the external sheaths of the ovipositor of the parasitic wasp Aphidius ervi, in particular the secretory structure is described for the first time. These glands are made up of a large epithelial structure that consists a single layer of large secretory cells that occupy most of the lumen of the valve and belong to gland cell class 1. Based on the different features of the glands, a lubricating and/or host marking function is hypothesized and discussed., Sara Ruschioni, Paola Riolo, Roberto Romani, Donatella Battaglia, Nunzio Isidoro., and Obsahuje bibliografii
Rights:
http://creativecommons.org/publicdomain/mark/1.0/ and policy:public